BY ARTHUR WHITE. 251 



SciAPUS DisPAR, Macq. 



This sjDecies is described by Macqiiart as green; legs 

 yellow, femora green in the male ; wings hyaline. 



Length, 4.5 mm. 



Ilab. "Tasmania."' 



In Macquart's figure the posterior cross-vein is given as 

 straight. The species is unknown to me. 



SciAPus NiGROPiLOSus, Macq. 



Thorax {^) blue-green, ( 9 ) bronze- green ; abdomen {^) 

 blue-green or bronze-green, ( 9 ) bright cupreous ; legs 

 black ; thorax and abdomen in the male bearing dense black 

 pubescence. 



Length. Male, 4.5 - 5 mm. ; female, 4.5 mm. 



Hab. Generally distributed. 



Male. Face and front metallic blue-green or bronze- 

 green. Eyes widely separated. Antennae black. Back of 

 head with a fringe of long white hairs. Thorax and 

 scutellum blue-green; abdomen blue-green or bronze-green; 

 both thorax and abdomen bearing long, stiff, black 

 pubescence. Legs entirely black, the femora with extremely 

 long black hairs. Wings tinged with grey, the subcostal 

 vein long ; radial and cubital veins of nearly equal length, 

 and almost parallel; posterior cross-vein straight. 



Female differs considerably in appearance from the male; 

 thorax bronze-green instead of blue-green ; abdomen 

 shorter, more conical, and brightly cupreous ; and the 

 thorax, abdomen, and legs devoid of the long pubescence 

 of the male. In the wings the subcostal vein is shorter, 

 and the radial and cubital veins apically curved. 



>S'. nigropi'lo^^us differs considerably from the other speeies 

 of Sciapus, and will probably have to be placed in a dis- 

 tinct genus. It is a fairly common sjiecies, and may be 

 found settled on the leaves of shiiibs, or more rarely on 

 the gi'ouna in sunnv places. My dates range from October 

 1 to October 27. " 



Besides the foregoing species, a species was described by 

 Macquart under the name of Psilo'pii.i sidneyensis from 

 "Sidney Island and Tasmania." The former island, as 

 has been pointed out by Miss Ricardo (.Aiin. Mag. Hat. 

 Hist., May, 1914), belongs to the Phoenix Group, in Poly- 

 nesia. These islands are situated close to the equator, and 

 it seems unlikely that a delicate insect like the present 

 should be common to two such widely differing localities. 

 Under these circumstances, I think that some mistake has 



